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| 芯塑模; 钻孔模具 | |||
| 孔道模具 | |||
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| 药柱内孔芯模 | |||
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cored- mould : 9 phrases in 4 subjects |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Plastics | 3 |
| Space | 4 |
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